<template>
  <div>
    <!--    面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

<!--    卡片视图-->
    <el-card>
<!--      搜素框和添加按钮-->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
              placeholder="请输入内容"
              v-model="queryInfo.query"
              clearable
              @clear="getGoodsList">
            <el-button
                slot="append"
                icon="el-icon-search"
                @click="getGoodsList">
            </el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>

<!--      商品分类表格-->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name" ></el-table-column>
        <el-table-column label="商品价格（元）" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
            {{scope.row.add_time | dataFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeGoods(scope.row.goods_id)">
            </el-button>
          </template>
        </el-table-column>
      </el-table>
<!--分页区-->
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[5,10,15,20]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
          background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data(){
    return{
      // 查询参数的对象
      queryInfo:{
        // 查询关键词
        query:"",
        // 当前页码，获取第几页的数据
        pagenum:1,
        //每页显示的数据条数
        pagesize:10
      },
      // 商品列表数组
      goodsList:[],
      //数据总条数
      total:0
    }
  },
  methods:{
    // 获取商品分类列表
   async getGoodsList(){
    const {data:res} = await this.$http.get("goods",{params:this.queryInfo})
     if(res.meta.status!==200) return this.$message.error("获取商品列表失败")
     this.goodsList = res.data.goods
     this.total = res.data.total
    },
    // 监听pageSize变化
    handleSizeChange(newPageSize){
     this.queryInfo.pagesize = newPageSize
      this.getGoodsList()
    },
    //监听当前所在页码值
    handleCurrentChange(newPageNum){
     this.queryInfo.pagenum = newPageNum
      this.getGoodsList()
    },
    // 删除商品
   async removeGoods(id){
     const confirmResult = await this.$confirm("此操作将永久删除该商品，是否继续？","提示",{
       confirmButtonText:"确定",
       cancelButtonText:"取消",
       type:"warning"
     }).catch(err=>err)

     if(confirmResult!=="cancel"){
     const {data:res} = await this.$http.delete(`goods/${id}`)
       if(res.meta.status !== 200) return  this.$message.error("删除商品失败")
       this.getGoodsList()
       this.$message.success("删除商品成功")
     }else{
       this.$message.info("已取消删除")
     }
   },
    // 前往添加界面
    goAddPage(){
     this.$router.push("/goods/add")
    }
  },
  created() {
    this.getGoodsList()
  }
}
</script>

<style>

</style>